GK
PHYSICS
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 Question 
 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
 
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 How does light travel 
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  It curves around corners 
 
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  Really slow 
 
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  In a straight line 
 
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  In circles 
 
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 Explanation: 
Detailed explanation-1: -Light does not travel in a straight path. It travels as a wave. However as the wavelength is very small, it looks like it travels in a straight line. Also when light travels from one medium to another, it bends.
Detailed explanation-2: -Light travels as waves. These are transverse waves, like the ripples in a tank of water. The direction of vibration in the waves is at 90° to the direction that the light travels. Light travels in straight lines, so if you have to represent a ray of light in a drawing, always use a ruler.
Detailed explanation-3: -Students will discover that light travels in a straight line.
 There is 1 question to complete.